Re: [PATCH] hwrng: OMAP: Fix assumption that runtime_get_sync will always succeed
From: Nishanth Menon <nm@ti.com>
Date: 2016-06-24 16:47:29
Also in:
linux-arm-kernel, linux-omap, lkml
From: Nishanth Menon <nm@ti.com>
Date: 2016-06-24 16:47:29
Also in:
linux-arm-kernel, linux-omap, lkml
On 06/24/2016 11:35 AM, Suman Anna wrote: [...]
quoted
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c index 8a1432e8bb80..f30a1870cb64 100644 --- a/drivers/char/hw_random/omap-rng.c +++ b/drivers/char/hw_random/omap-rng.c@@ -384,7 +384,11 @@ static int omap_rng_probe(struct platform_device *pdev) } pm_runtime_enable(&pdev->dev); - pm_runtime_get_sync(&pdev->dev); + ret = pm_runtime_get_sync(&pdev->dev); + if (ret) { + dev_err(&pdev->dev, "Failed to runtime_get device: %d\n", ret); + goto err_ioremap;You need to also add a pm_runtime_put_noidle() on get_sync failures to balance the device's power usage_count.
Crap, yep, I should have known better. thanks for catching it.. v2 incoming.. -- Regards, Nishanth Menon